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Table 5 Diagnostic accuracy of microscopy and RDT across the age groups

From: Accuracy of diagnosis among clinical malaria patients: comparing microscopy, RDT and a highly sensitive quantitative PCR looking at the implications for submicroscopic infections

Age group (years)

Sensitivity %

Specificity %

PPV %

NPV %

RDT

  < 5

67.0 (57.2–75.6)

99.1 (95.2–100.0)

98.5 (91.9–100.0)

77.9 (70.5–83.4)

 5–14

87.8 (78.5–93.5)

94.6 (85.2–98.5)

95.6 (87.8–98.8)

85.3 (74.3–92.0)

 15–30

48.7 (40.9–56.5)

98.1 (95.2–99.3)

94.9 (87.7–98.0)

72.2 (66.7–77.1)

  > 30

34.5 (26.4–43.7)

98.7 (96.1–99.6)

92.9 (81.0–97.5)

74.9 (69.7–79.5)

Microscopy

  < 5

44.3 (34.9–54.2)

99.1 (95.2–100.0)

97.7 (88.2–100.0)

67.7 (60.2–74.3)

 5–14

60.8 (49.4–71.1)

98.2 (90.4–100.0)

97.8 (88.7–99.9)

65.1 (54.3–74.4)

 15–30

37.0 (29.8–44.9)

99.0 (96.6–99.8)

96.6 (88.5–99.4)

68.1 (62.7–73.1)

  > 30

23.9 (17.0–32.5)

97.3 (94.3–98.8)

81.8 (65.6–91.4)

71.7 (66.4–76.5)

  1. Values in the bracket indicate the 95% confidence interval